Nitrogen swelling agent is vital for controlling gas channelling during cementing.
氮气膨胀剂在固井防气窜中起着重要的作用。
Some unscrupulous vendors use a swelling agent on ginger and potatoes and bleach lotus-roots with sulfur.
一些不良商贩在生姜和土豆上使用膨化剂，用硫磺熏莲藕。
For oilfield chemical additives, such as clay anti-swelling agent, thickening agent used oil acidification.
聚丙烯酰胺还可用于油田化学助剂，如粘土防膨剂、油田酸化用稠化剂。
The damage of formation water and formation water contained anti-swelling agent to core permeability was tested.
实验测试了地层水以及含有防膨剂的地层水对油藏岩心渗透率的伤害。
Through advanced physical simulation experiment, the performance of the water-swelling agent is evaluated, and then it is improved.
运用先进的物理模拟实验对水膨体性能进行了评价，并对其进行了改进。
The fifth generation swelling agent (ZY) with high performance can solve well the controlling for cracking and penetrating of building structure.
第五代高性能混凝土膨胀剂(ZY)能较好地解决建筑结构的裂渗控制问题。
In food industry, it is used as buffering agent, chelating agent, yeast food, flavoring agent, nutrient supplement, fermentation adjunct, swelling agent and so on.
用途：在食品工业中作缓冲剂、螯合剂、酵母食料、调味剂、营养强化剂、发酵助剂、膨松剂等。
The influences of swelling agent solution concentration, treating temperature and time on the modification to flax fabric were studied to find the optimum modification conditions.
通过比较膨化剂浓度、改性温度和时间的改变对提高亚麻纤维染色性能的影响，优化出提高亚麻纤维染色性能的最佳改性工艺。
The timed release pellets consist of 5 laminar layers from the center to the outside :the core, the drug layer, the swelling agent layer , the block layer and the controlled layer .
该脉冲微丸由5层结构组成，从内而外分别是丸芯、药物层、溶胀层、阻滞层和水不溶性控释层。
Factors affecting sulfonation reaction such as microwave power, heating time, reactants ratio, swelling agent and the position of reaction container in cavity of microwave oven were investigated.
研究了微波功率、加热时间、反应物配比、溶胀剂、反应器在微波炉内的位置等因素对磺化反应的影响。
Factors affecting sulfonation reaction such as microwave power, heating time, reactants ratio, swelling agent and the position of reaction container in cavity of microwave oven were investigated.
研究了微波功率、加热时间、反应物配比、溶胀剂、反应器在微波炉内的位置等因素对磺化反应的影响。
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